Diane Eve Warren (born September 7, 1956), is an American songwriter. Her songs have received six Academy Award nominations, five Golden Globe nominations, including one win, and seven Grammy Award nominations, including one win. She was inducted into the Songwriters Hall of Fame in 2001. Her success in the US has been paralleled in the UK, where she has been rated the third most successful female artist. Peter Reichardt, former Chairman of EMI Music Publishing UK, commented; "She's the most important songwriter in the world."

She was the first songwriter in the history of Billboard to have seven hits, all by different artists, on the singles chart at the same time. Warren owns a publishing company, Realsongs, which gives her control over her compositions. Meanwhile, her songs have been featured in more than 70 films or television shows.

Warren was born in Van Nuys, California, where she said she felt misunderstood and "alien" as a Jewish kid growing up. She says she was rebellious as a child and told NPR's Scott Simon that she got into trouble and ran away as a teen but returned because she missed her cat. She began writing music when she was 14. "Music saved me", she said. Warren also has said that her mother asked her to give up her dream of a songwriting career and take a secretarial job. However, her father continued to believe in her and encouraged her. She wrote the song "Because You Loved Me" as a tribute to her father for his encouragement.

Stefani Joanne Angelina Germanotta (/ˈstɛfəniː dʒʌrməˈnɑːtə/ STE-fə-nee jurr-mə-NAH-tə; born March 28, 1986), known by her stage name Lady Gaga, is an American singer and songwriter. Born and raised in New York City, she primarily studied at the Convent of the Sacred Heart and briefly attended New York University's Tisch School of the Arts before withdrawing to focus on her musical career. She began performing in the rock music scene of Manhattan's Lower East Side, and was signed with Streamline Records by the end of 2007. During her employment as a songwriter for the record company, her vocal abilities captured the attention of recording artist Akon, who signed her to his label Kon Live Distribution.

Lady Gaga came to prominence as a recording artist following the release of her debut album The Fame (2008), which was a critical and commercial success that topped charts around the world and included the international number-one singles "Just Dance" and "Poker Face". After embarking on the The Fame Ball Tour, she followed the album with The Fame Monster (2009), which spawned the worldwide hit singles "Bad Romance", "Telephone" and "Alejandro". The album's success allowed her to embark on the eighteen-month long Monster Ball Tour, which later became one of the highest-grossing concert tours of all time. Her most recent album Born This Way (2011) topped the charts of most major markets and generated more international chart-topping singles, including "Born This Way", "Judas" and "The Edge of Glory". Besides her musical career, she involves herself with humanitarian causes and LGBT activism.

Whitney Elizabeth Houston (August 9, 1963 – February 11, 2012) was an American recording artist, actress, producer, and model. In 2009, the Guinness World Records cited her as the most-awarded female act of all-time. Houston was one of the world's best-selling music artists, having sold over 170 million albums, singles and videos worldwide. She released seven studio albums and three movie soundtrack albums, all of which have diamond, multi-platinum, platinum or gold certification. Houston's crossover appeal on the popular music charts, as well as her prominence on MTV, starting with her video for "How Will I Know", influenced several African American female artists to follow in her footsteps.

Houston is the only artist to chart seven consecutive No. 1 Billboard Hot 100 hits. She is the second artist behind Elton John and the only female artist to have two number-one Billboard 200 Album awards (formerly "Top Pop Album") on the Billboard magazine year-end charts. Houston's 1985 debut album Whitney Houston became the best-selling debut album by a female act at the time of its release. The album was named Rolling Stone's best album of 1986, and was ranked at number 254 on Rolling Stone's list of the 500 Greatest Albums of All Time. Her second studio album Whitney (1987) became the first album by a female artist to debut at number one on the Billboard 200 albums chart.